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Last modified by Karry Zhuang on 2024/07/11 11:58
From version 57.9
edited by Xiaoling
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To version 1.10
edited by Xiaoling
on 2022/05/12 10:05
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Summary

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Content
... ... @@ -1,36 +1,19 @@
1 -(% class="wikigeneratedid" %)
2 -*
3 -** Table of** **Contents:
1 += 1. Introduction =
4 4  
5 -{{toc/}}
6 -
7 -
8 -
9 -
10 -
11 -
12 -= **1. Introduction** =
13 -
14 -
15 15  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
16 16  
5 +== 1.1 Example 1: Connect to Leak relay and VFD ==
17 17  
18 -== **1.1 Example 1: Connect to Leak relay and VFD** ==
19 -
20 -
21 21  This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Relay and VFD and communicate with Mobile. The structure is like below:
22 22  
23 -[[image:image-20220527091852-1.png]]
9 +[[image:https://wiki.dragino.com/images/thumb/5/5c/RS485_01.png/600px-RS485_01.png||height="297" width="534"]]
24 24  
25 25  Connection
26 26  
13 +[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
27 27  
28 -
29 -[[image:image-20220527091942-2.png]](% style="display:none" %)
30 -
31 31  Connection
32 32  
33 -
34 34  Related documents:
35 35  
36 36  * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
... ... @@ -37,33 +37,29 @@
37 37  * [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code.
38 38  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
39 39  
40 -== **1.2 Example 2: Connect to Pulse Counter** ==
41 41  
24 +== 1.2 Example 2: Connect to Pulse Counter ==
42 42  
43 43  This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Pulse Counter and communicate with Mobile. This example and example 2 compose the structure for a farm IoT solution. The structure is like below:
44 44  
28 +[[image:https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]]
45 45  
46 -[[image:image-20220527092058-3.png]]
47 -
48 48  Connection
49 49  
32 +[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
50 50  
51 -
52 -[[image:image-20220527092146-4.png]]
53 -
54 54  Connection
55 55  
56 -
57 -* Configure Document: [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]]
36 +* [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]] : Configure Document
58 58  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
59 59  
60 -== **1.3 Example3: Use RS485-LN with energy meters** ==
61 61  
62 -=== **1.3.1 OverView** ===
40 +== 1.3 Example3: Use RS485-LN with energy meters ==
63 63  
42 +=== 1.3.1 OverView ===
64 64  
65 65  (((
66 -(% style="color:red" %)**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
45 +**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
67 67  )))
68 68  
69 69  (((
... ... @@ -70,59 +70,42 @@
70 70  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
71 71  )))
72 72  
73 -[[image:image-20220527092419-5.png]]
52 +[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]
74 74  
75 75  Connection1
76 76  
56 +How to connect with Energy Meter：
77 77  
78 -
79 -(((
80 -**How to connect with Energy Meter：**
81 -
82 -
83 -)))
84 -
85 -(((
86 86  Follow the instructions of the electric energy meter to connect the phase line and the neutral line, and then connect 485A+ and 485B- to RS485A and RA485B of RS485-LN respectively.
87 -)))
88 88  
89 -(((
90 90  The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
91 -)))
92 92  
93 -(((
94 94  Power Source VIN to RS485-LN VIN+
95 -)))
96 96  
97 -(((
98 98  Power Source GND to RS485-LN VIN-
99 -)))
100 100  
101 -(((
102 102  Once there is power, the RS485-LN will be on.
103 -)))
104 104  
105 -[[image:image-20220527092514-6.png]]
68 +[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="450" width="600"]]
106 106  
107 107  Connection2
108 108  
72 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]]
109 109  
110 -
111 -[[image:image-20220527092555-7.png]]
112 -
113 113  Connection3
114 114  
115 115  
116 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
77 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
117 117  
118 -
119 119  If the user needs to read the parameters of the electric energy meter and use the modbus command,please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter.
120 120  
121 -[[image:image-20220601143257-10.png]]
81 +[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
122 122  
83 +(% class="box infomessage" %)
84 +(((
85 +Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
86 +)))
123 123  
124 -(% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
125 -
126 126  * The first byte : slave address code (=001～247)
127 127  * The second byte : read register value function code
128 128  * 3rd and 4th bytes: start address of register to be read
... ... @@ -129,13 +129,11 @@
129 129  * 5th and 6th bytes: Number of registers to read
130 130  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
131 131  
132 -(((
133 -
134 -
135 -
136 136  How to parse the reading of the return command of the parameter：
137 137  
138 -(% style="color:blue" %)**Example:**(%%) RETURN1：01 03 02 08 FD 7E 05
96 +(% class="box infomessage" %)
97 +(((
98 +Example:RETURN1：01 03 02 08 FD 7E 05
139 139  )))
140 140  
141 141  * The first byte ARD: slave address code (=001～254)
... ... @@ -145,137 +145,88 @@
145 145  * The 6th and 7th bytes: CRC16 checksum
146 146  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
147 147  
148 -(% class="wikigeneratedid" %)
149 -(((
150 -
151 151  
109 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
152 152  
153 -
154 -)))
155 -
156 -=== **1.3.3 How to configure RS485-LN and parse output commands** ===
157 -
158 -
159 159  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
160 160  
113 +==== 1.3.3.1 via AT COMMAND: ====
161 161  
162 -==== **1.3.3.1 via AT COMMAND** ====
115 +First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
163 163  
164 -
165 -First, we can use (% style="color:blue" %)**AT+CFGDEV**(%%) to get the return value, and we can also judge whether the input parameters are correct.
166 -
167 167  (((
168 168  If the configured parameters and commands are incorrect, the return value is not obtained.
169 169  )))
170 170  
171 -[[image:image-20220601143201-9.png]]
121 +[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
172 172  
173 -AT COMMAND
123 +**AT COMMAND**
174 174  
175 -
176 176  (% class="box infomessage" %)
177 177  (((
178 - **AT+DATACUTx **:  This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
127 +AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
179 179  )))
180 180  
181 -a:  length for the return of AT+COMMAND
130 +a: length for the return of AT+COMMAND
182 182  
183 -b: 1: grab valid value by byte, max 6 bytes;  2: grab valid value by bytes section, max 3 sections.
132 +b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
184 184  
185 -c:  define the position for valid value.
134 +c: define the position for valid value.
186 186  
187 -[[image:image-20220601143115-8.png]]
136 +[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]
188 188  
189 189  AT COMMAND
190 190  
191 -
192 -
193 193  PAYLOAD is available after the valid value is intercepted.
194 194  
195 195  
196 -[[image:image-20220601143046-7.png]]
143 +[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
197 197  
198 198  AT COMMAND
199 199  
200 -
201 -
202 202  You can get configured PAYLOAD on TTN.
203 203  
204 -[[image:image-20220601143519-1.png]]
205 205  
206 -(((
150 +[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
151 +
207 207  AT COMMAND
208 -)))
209 209  
210 -(((
211 -
212 -)))
154 +**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
213 213  
214 -(((
215 -(% style="color:blue" %)**Example**:
156 +RETURN1:01 03 02 00 02 39 85 00 00(return data)
216 216  
217 -CMD1: Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
218 -)))
158 +AT+DATACUT1:9,1,4+5+6+7 Take the return value 00 02 39 85 as the valid value of reading current data and used to splice payload.
219 219  
220 -(((
221 -RETURN1: 01 03 02 00 02 39 85 00 00(return data)
222 -)))
160 +CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
223 223  
224 -(((
225 -AT+DATACUT1: 9,1,4+5+6+7 Take the return value 00 02 39 85 as the valid value of reading current data and used to splice payload.
162 +RETURN2:01 03 02 08 DC BE 1D(return data)
226 226  
227 -
228 -)))
164 +AT+DATACUT2:7,1,4+5 Take the return value 08 DC as the valid value of reading voltage data and used to splice payload.
229 229  
230 -(((
231 -CMD2: Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1
232 -)))
166 +CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
233 233  
234 -(((
235 -RETURN2: 01 03 02 08 DC BE 1D(return data)
236 -)))
168 +RETURN3:01 03 04 00 00 00 44 FA 00(return data)
237 237  
238 -(((
239 -AT+DATACUT2: 7,1,4+5 Take the return value 08 DC as the valid value of reading voltage data and used to splice payload.
170 +AT+DATACUT3:9,1,4+5+6+7 Take the return value 00 00 00 44 as the valid value of reading total active energy data and used to splice payload.
240 240  
241 -
242 -)))
172 +Payload:01 00 02 39 85 08 DC 00 00 00 44
243 243  
244 -(((
245 -CMD3: Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
246 -)))
174 +[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
247 247  
248 -(((
249 -RETURN3: 01 03 04 00 00 00 44 FA 00(return data)
250 -)))
251 -
252 -(((
253 -AT+DATACUT3: 9,1,4+5+6+7 Take the return value 00 00 00 44 as the valid value of reading total active energy data and used to splice payload.
254 -)))
255 -
256 -(((
257 -Payload: 01 00 02 39 85 08 DC 00 00 00 44
258 -)))
259 -
260 -[[image:image-20220601142936-6.png]]
261 -
262 262  AT COMMAND
263 263  
178 +01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
264 264  
265 -(% style="color:#4f81bd" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.**
266 266  
181 +[[~[~[image:https://wiki.dragino.com/images/thumb/b/b8/AT_COMMAND11.png/600px-AT_COMMAND11.png~|~|height="271" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:AT_COMMAND11.png]]
267 267  
268 -
269 -[[image:image-20220601143642-2.png]]
270 -
271 271  AT COMMAND
272 272  
273 273  
274 -==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
186 +==== 1.3.3.2 via LoRaWAN DOWNLINK ====
275 275  
188 +[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
276 276  
277 -[[image:image-20220527093358-15.png]]
278 -
279 279  (((
280 280  DOWNLINK
281 281  )))
... ... @@ -285,15 +285,12 @@
285 285  )))
286 286  
287 287  (((
288 -(% style="color:#4f81bd" %)**Type Code 0xAF**
199 +Type Code 0xAF
289 289  )))
290 290  
291 291  (((
292 -(% class="box infomessage" %)
293 -(((
294 294  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
295 295  )))
296 -)))
297 297  
298 298  (((
299 299  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
... ... @@ -332,139 +332,91 @@
332 332  )))
333 333  
334 334  (((
335 -
336 -
337 -(% style="color:#4f81bd" %)**Example:**
243 +Example:
338 338  )))
339 339  
340 340  (((
341 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
247 +AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
342 342  )))
343 343  
344 -[[image:image-20220601144149-6.png]]
250 +[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
345 345  
346 346  DOWNLINK
347 347  
348 348  
255 +[[~[~[image:https://wiki.dragino.com/images/thumb/2/20/DOWNLINK_METER3.png/600px-DOWNLINK_METER3.png~|~|height="105" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER3.png]]
349 349  
350 -[[image:image-20220601143803-3.png]]
351 -
352 352  DOWNLINK
353 353  
354 354  
260 +[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
355 355  
356 -[[image:image-20220601144053-5.png]]
357 -
358 358  DOWNLINK
359 359  
360 360  
265 +[[~[~[image:https://wiki.dragino.com/images/thumb/3/39/DOWNLINK_METER5.png/600px-DOWNLINK_METER5.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER5.png]]
361 361  
362 -[[image:image-20220601143921-4.png]]
363 -
364 364  DOWNLINK
365 365  
269 +[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
366 366  
367 -
368 -[[image:image-20220601142805-5.png]]
369 -
370 370  DOWNLINK
371 371  
372 372  
373 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
274 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
374 374  
375 -(((
376 376  This step is not necessary, it is just to show how to use a normal RS485 to USB adapter to connect to the meter to check the input and output. This can be used to test the connection and RS485 command of the meter without RS485-LN.
377 -)))
378 378  
379 -(((
380 380  First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter.
381 -)))
382 382  
383 -(((
384 384  Open the serial port debugging, set the send and receive to HEX.
385 -)))
386 386  
387 -(((
388 388  Baud rate: 9600
389 -)))
390 390  
391 -(((
392 392  check digit: Even
393 -)))
394 394  
395 -[[image:image-20220527093708-21.png]]
286 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
396 396  
397 397  USB
398 398  
290 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
399 399  
400 -
401 -[[image:image-20220527093747-22.png]]
402 -
403 403  USB
404 404  
405 -
406 -
407 -(((
408 408  The configuration command is consistent with the AT command, input the hexadecimal command directly into the serial port, and the serial port will output the command.
409 -)))
410 410  
411 -(((
412 -(% style="color:#4f81bd" %)**Example:**  (%%)input：01 03 00 31 00 02 95 c4
413 -)))
296 +Example:input：01 03 00 31 00 02 95 c4
414 414  
415 -(((
416 - output：01 03 04 00 00 00 42 7A 02
417 -)))
298 +{{{ output:01 03 04 00 00 00 42 7A 02
299 +}}}
418 418  
419 -[[image:image-20220527093821-23.png]]
301 +[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
420 420  
421 421  USB
422 422  
305 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
423 423  
424 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
425 -
426 426  If users need to read the parameters of multiple energy meters, they need to modify the device address, because the default device address of each energy meter is 01.
427 427  
428 -(((
429 -(((
430 430  Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
431 -)))
432 -)))
433 433  
434 -[[image:image-20220601142044-1.png]]
311 +[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
435 435  
313 +Example:These two meters are examples of setting parameters and device addresses.
436 436  
437 -**Example**:These two meters are examples of setting parameters and device addresses.
315 +[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
438 438  
439 -[[image:image-20220527093950-25.png]]
317 +[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]
440 440  
441 -
442 -[[image:image-20220527094028-26.png]]
443 -
444 -(((
445 -(((
446 446  First of all, since the default device address of the energy meter is 01, the configuration of two energy meters will conflict, so we first connect an energy meter and configure the device address.
447 -)))
448 -)))
449 449  
450 -(((
451 -(((
452 452  We can use AT+CFGDEV to set the device address.
453 -)))
454 -)))
455 455  
456 -(((
457 -(((
458 458  We modify the device address 01 of the first energy meter to 02.
459 -)))
460 -)))
461 461  
462 -[[image:image-20220601142354-2.png]]
325 +[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
463 463  
464 -(% class="box infomessage" %)
465 -(((
466 -**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
467 -)))
327 +AT+CFGDEV:01 10 00 61 00 01 02 00 02,1
468 468  
469 469  * 01:device adaress
470 470  
... ... @@ -486,26 +486,27 @@
486 486  
487 487  Its default device address is 01, and the following are the parameters for configuring two energy meters.
488 488  
489 -[[image:image-20220601142452-3.png]]
349 +[[image:https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]]
490 490  
351 +[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]]
491 491  
492 -[[image:image-20220601142607-4.png]]
353 +PAYLOAD:01 08 DF 43 62
493 493  
494 -**PAYLOAD:01 08 DF 43 62**
495 -
496 496  * 08 DF is the valid value of the meter with device address 02.
497 497  * 43 62 is the valid value of the meter with device address 01.
498 498  
358 +
499 499  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
500 500  
501 501  This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to SCHNEIDER SMART and Monitor and control your cabinet remotely with no wires and with Dragino RS485-LN LoRaWAN technology. The structure is like below:
502 502  
503 -[[image:image-20220527094330-30.png]]
363 +[[image:https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]]
504 504  
505 505  Connection
506 506  
507 507  * [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/]] : Configure Documen
508 508  
369 +
509 509  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
510 510  
511 511  This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-BL to connect to SEM Three Energy Meter and send the data to mobile phone for remote minitor. The structure is like below:
... ... @@ -514,6 +514,7 @@
514 514  
515 515  * [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/SEM_Three_Energy_Meter/&file=SEM%20three%20and%20Dragino%20RS485-LN%20v1.pdf]] : Configure Document for RS485-LN
516 516  
378 +
517 517  == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
518 518  
519 519  This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to CEM C31 485-T1-MID and send the data for remote minitor. The structure is like below:
... ... @@ -520,9 +520,10 @@
520 520  
521 521  * [[CEM C31 485-T1-MID>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/ELECTRICAL%20CABINET/&file=ELECTRICAL%20CABINET%20READINGS.pdf]] : Configure Document For RS485-LN
522 522  
385 +
523 523  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
524 524  
525 -[[image:image-20220527094556-31.png]]
388 +[[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]
526 526  
527 527  Network Structure
528 528  
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